1 Way Programmable Relay Board 4 Button with LED Display Electronic Components
ab 7,14 €
Trigger Signal Source: High Level Trigger (3.0v-24v) Signal Ground And The System Ground Is Not Common Ground To Improve The System'S Anti-Jamming Ability (Can Also Be Shorted To Common Ground). All the settings of this disconnect trigger circuit switch are automatically saved even after power loss.
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